Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
  • A61K8/463—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
  • A61K8/361—Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/02—Preparations for cleaning the hair
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/12—Preparations containing hair conditioners

Definitions

• the present invention relates to conditioning shampoos which contain a saturated, straight chain fatty acid having from about 14 to about 18 carbon atoms as the conditioning agent.
• Hair rinses typically work by depositing a polymeric film or other material onto the hair.
• hair rinses are generally-liquid in nature and must be applied in a separate step following the shampooing, left on the hair for a length of time, and rinsed with fresh water. This, of course, is time consuming and is not convenient.
• the results obtained in this manner also have not been fully satisfactory due to the difficulties associated with the deposition and retention on the hair of the hair conditioning aid.
• the inclusion of suitable conditioning agents in a shampoo therefore has certain attractive features.
• It is a further object of the present invention to provide a superior hair conditioning shampoo composition comprising a saturated, straight chain fatty acid having from about 14 to about 18 carbon atoms, an anionic surfactant and having a pH of from about 3.0 to about 5.5
• a still further object of the present invention is to provide a superior method for cleaning and conditioning hair.
• the present invention relates to conditioning shampoos containing as the conditioning agent a saturated, straight chain fatty acid having from about 14 to about 18 carbon atoms.
• Such compositions generally comprise:
• the conditioning shampoo compositions of the present invention comprise as noted above an anionic surfactant, a fatty acid and water. Suitable surfactants, fatty acids, pH adjustment agents and optional ingredients are discussed in detail below.
• surfactant One essential component of the conditioning shampoos herein is a surfactant.
• surfactant as used herein is intended to denote a synthetic anionic surfactant.
• Anionic surfactants suitable for use herein can be exemplified by the salts of organic sulfuric reaction products having in their molecular structure an alkyl radical containing from 8--22 carbon atoms and a sulfonic acid or sulfuric acid ester radical (included in the term alkyl is the alkyl portion of higher acyl radicals).
• alkyl is the alkyl portion of higher acyl radicals.
• ammonium, sodium, potassium or triethanolamine alkyl sulfates especially those obtained by sulfating the higher alcohols (C 8 - C 18 carbon atoms); sodium coconut oil fatty acid monoglyceride sulfates and.
• sulfonates ammonium, triethanolamine, sodium or potassium salts of sulfuric acid esters of the reaction product of 1 mole of a higher fatty alcohol (e.g., tallow or coconut oil alcohols) and l to 12 moles of ethylene oxide; sodium or potassium salts of alkyl phenol ethylene oxide ether sulfates with 1 to 10 units of ethylene oxide per molecule and in which the alkyl radicals contain from 8 to 12 carbon atoms; and sodium alkyl glyceryl ether sulfonates.
• a higher fatty alcohol e.g., tallow or coconut oil alcohols
• the more preferred surfactants for use in the present compositions include ammonium or sodium lauryl sulfate and ammonium or sodium lauryl ether (3 ethylene oxide groups) sulfate or combinations thereof.
• Ammonium lauryl sulfate is most preferred as the surfactant for the present compositions.
• the surfactant level is between 10% and 26%, preferably between 13% and 20%.
• the conditioning agent of the present composition a saturated, straight chain fatty acid having from about 14 to about 18 carbon atoms, is present at a level of from about 1% to about 3%. Preferably, the level is from about 1% to about 25.
• Suitable fatty acids include myristic acid, palmitic acid, stearic acid and mixtures thereof.
• the preferred fatty acid is palmitic acid.
• the shampoos herein are preferably in the form of liquids or creams in which water is the principal diluent.
• the level of water in the compositions is typically from about 35% to about 89% by weight.
• the pH of the shampoo compositions herein should lie in the range of about 3.0 to about 5.5, preferably in the range of about 4.5 to about 5.0.
• the pH is kept in the acidic range to maintain the fatty acid in an unsaponified state.
• Suitable pH adjustment agents include citric acid, phosphoric acid, succinic acid and a sodium citrate/citric acid combination among many others.
• the conditioning shampoos herein can contain a variety of non-essential optional ingredients suitable for improving such compositions in a variety of ways.
• Such conventional optional ingredients are well known to those skilled in the art, e.g., preservatives such as benzyl alcohol, methyl paraben, propyl paraben and imidiazolidinyl urea; thickeners and viscosity modifiers such as coconut ethanol amide, sodium chloride, ammonium chloride, sodium sulfate, carboxymethyl cellulose, methylcellulose, polyvinyl alcohol, and ethyl alcohol; suspending agents such as magnesium/aluminum silicate; perfumes; dyes; opacifiers such as behenic acid, ethylene glycol distearate and calcium stearate; sequestering agents such as disodium ethylenediamine tetraacetate; and perfumes. If present, such agents individually generally comprise from about 0.01% to 5.0% by weight of the composition.
• Surfactants other than anionicn, can also be added as optional components-to the present compositions.
• the optional surfactants may be selected from any of the other types of surfactants but the preferred types are nonionics and amphoterics.
• the shampoo compositions of the present invention are made using mixing techniques which are well known in the art. A method of making the present invention is shown in the examples which follow.
• the present invention comprises a method of shampooing the hair by contacting the hair with an amount of the shampoo compositions herein which is effective to clean and condition the hair and rinsing the shampoo from the hair.
• An effective amount for any individual will depend upon variable factors such as length of the hair, thickness of the hair, amount of soil present, level of surfactant in the shampoo composition, etc. Generally, an effective amount will be from about 5 to about 40 grams per use.
• a typical shampoo composition of the present invention has the following formula:
• Another typical composition of the present invention is as follows:
• Freshly washed hair has less of a tendency to "fly away" when combed after drying if the compositions of Examples I and II are used rather than the same compositions without palmitic acid to wash the hair.
• a method which can be used to make the preceding exemplary compositions of the present invention is as follows:

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• Health & Medical Sciences (AREA)
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• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
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• Birds (AREA)
• Epidemiology (AREA)
• Emergency Medicine (AREA)
• Dermatology (AREA)
• Cosmetics (AREA)
• Detergent Compositions (AREA)

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Cited By (7)

Citations (5)

• 1980
  • 1980-05-19 EP EP19800200466 patent/EP0019970B1/de not_active Expired
  • 1980-05-19 DE DE8080200466T patent/DE3065355D1/de not_active Expired
  • 1980-05-22 JP JP6838080A patent/JPS5620099A/ja active Pending

Patent Citations (5)

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